I recognize the ZDTP...what will the other stuff do? They don't give amounts except <5% of the total volume.

Why add more ZDTP? Isn't there the correct amount in all good oils? Here's what Racor says about this product:"Racor Lube Oil Treatment is a fluorocarbon additive which contains an advanced, highly effective polymer lubricant. It provides a superior thin coating to protect precision engine parts and does not contain PTFE which has been known to fall from suspension and clog precision engine components."

** A multifunctional additive of Boron which acts as a dispersant to keep sludge and carbon suspended, and is also an AW and anti-corrosion additive.

magnesium and calcium alkylaryl detergents,

** a detergent package to clean up engine parts and raise the TBN.

solvent extracted mineral oil,

** probably just a good Group I base oil as a carrier.

alkyl amine and

** A surfactant and wetting agent to help spread the additive over metal parts.

other components in a petroleum lubricating base stock

** Maybe some more trace chemicals such as a defoaming agent and a rust preventative.

Not too bad; the problem is not knowing the amount of each additive. Too much of any one additive can conflict with other additives already in a formulated base oil. We call this a potential "additive clash."